SLA Management and Service Composition of Virtualized Applications in Mobile Networking Environments

Transcription

1 SLA Management and Service Composition of Virtualized Applications in Mobile Networking Environments G. Landi (1), Thijs Metsch (2), P.M. Neves (3), J. Mueller (4), A. Edmonds (5), P.S. Crosta (6) (1) Nextworks, Italy - (2) Intel, Ireland - (3) Portugal Telecom Inovação, Portugal (4) Technical University Berlin, Germany - (5) Zurich University of Applied Science, Switzerland (6) Italtel, Italy SDNMO 2014

2 Cloud-based mobile networks: the concept Moving cloud computing beyond datacenters towards the mobile end-users. Mobile Connectivity Decentralized Computing Smart Storage offered as a single end-to-end service! On-demand and self-service! Elastic! Multi-tenant! Pay-as-you-go MCN. All rights reserved. / Page 2

3 LTE systems on the cloud: the MCN approach Support services A full set of integrated services for end-to-end management solutions Cross-domain control and management plane The fundamental enabler for the automated, seamless orchestration and composition of heterogeneous cloud/net services and resources RAN as a Service Offer heterogeneous radio access as a service, moving the BBU processing into DCs Mobile Core Network as a Service 3GPP EPC data plane and control plane components provisioned on-demand and dynamically operated on the cloud MCN. All rights reserved. / Page 3

4 MCN holistic vision A dynamic and orchestrated composition of heterogeneous resources, atomic functions, supporting services and applications Everything provided as-a-service! But how to manage SLAs for this service composition? E2E services for novel apps CDN aas DSS aas Network infrastructure services RAN aas EPC aas Atomic services Computing -aas Storage aas Network -aas Service orchestrator Cloud Controller Support services DB -aas Monitoring -aas DNS -aas SLA Management -aas Rating, Charging, Billing -aas Enhanced features Follow me and VM migration Load Balancing -aas MCN. All rights reserved. / Page 4

5 SLA management in MCN: the challenges End-to-end service chain of cloud infrastructures, virtualized network functions, support services & applications " Offered by a single provider or through federation of multiple providers " Composition of heterogeneous, but interdependent service components " Sharing of cross-domain cloud/net infrastructures among multiple tenants SLA management as an integrated support service of the MCN platform " Enforcement and validation of end-to-end SLAs for complex services " Exploiting the monitoring functions offered by the MCN platform " Combination of heterogeneous parameters, from different layers (net/cloud infrastructure or service performance) and belonging to different domains " Support for pay-as-you-go and SLA-oriented charging models " Trigger for customer-driven service elasticity and baseline for service reliability MCN. All rights reserved. / Page 5

6 MCN Reference Architecture MCN framework based on a service-oriented architecture " All the functional elements are modelled and delivered as services Service Manager: the entry-point for all the service requests " Business dimension to encode the business agreements " Tecnical dimension to manage the Service Orchestrator instances Service Orchestrator: a domain-specific component responsible of the orchestration and binding of MCN services and applications " Manages inter-dependencies among service components Cloud Controller: the component coordinating the end-to-end provisioning of atomic and support service resources MCN. All rights reserved. / Page 6 Cloud Controller <<uses>> <<uses>> Service Manager <<has>> Service Orchestrator

7 SLA management in MCN Objective: enable MCN providers to deliver end-to-end composed services compliant with the established SLAs " Service Level Objectives at the single AND composed service level " Describing inter-dependencies and expected service cooperation " Automated combination and joint evaluation of mixed information " From the virtual infrastructure at the resource level " From the different services at the application level SLA management as a Service: " Support service deployed and provisioned on-demand on the cloud " Automated adaptation to the dynamicity of the other services Features: " SLA repository for all MCN services " SLA enforcement in support of the Service Orchestrator " SLA verification to detect and react to SLA violations MCN. All rights reserved. / Page 7

8 SLA Management System SLA Repository SLAs with QoS params, metrics, cross-service features, monitoring, elastic procedures, SLA Rules Engine Processing & validation of SLA rules Prediction & detection of SLA breaches Collector & Aggregator Acquisition and combination of monitoring data in periodical reports SM instance SO instance Collector SLA Repository Aggregator Centralized SLA Management System SLA Rules Engine Feedback Manager Feedback Manager Decision point for SLA breach detection and reaction CC instance MCN Service Per-atomic-service distributed SLA Agents Monitoring Service Instance RCB Service Instace SLA Agents Distributed components deployed on-demand for each MCN service instance Centralized SLA Management System Persistent component with global SLA repository and processing engine for all the services offered by an MCN provider MCN. All rights reserved. / Page 8

9 SLA management in MCN service lifecycle MCN. All rights reserved. / Page 9

10 SLA service provisioning MCN Service MCN. All rights reserved. / Page 10

11 SLA service runtime MCN Service MCN. All rights reserved. / Page 11

12 Monitoring for SLA verification: Monitoring as a Service SLA Agents as specific Monitoring Consumers deployed on-demand MaaS as MCN support service Follows MCN services lifecycle: requested via SM, coordinated through SO, provisioned by CC CMMS Centralized elaboration & storage of heterogeneous monitoring data Monitoring Agents to collect information from a variety of service components MCN. All rights reserved. / Page 12

13 Conclusions Many opportunities for cloud-based mobile networks " Full exploitation of cloud concepts " On-demand and self-service " Elasticity " Multi-tenancy " Pay-as-you-go " Seamless integration of mobile connectivity + computing + storage resources " On-demand end-to-end services for novel applications with many technical challenges " Radio Access and Mobile Core Networks moved on the cloud " A full set of enhanced functions and support services for e2e cross-layer management " LoadBalancing-aaS, Monitoring-aaS, RCB-aaS A seamless and automated composition of cloud resources and services that requires an integrated SLA management service " Active during the different service phases " Supporting SLA enforcement and validation " Combining a mix of heterogeneous monitoring data at infrastructure and service level MCN. All rights reserved. / Page 13

14 THANK YOU!

15 MCN. All Rights Reserved The information in this document is provided "as is", and no guarantee or warranty is given that the information is fit for any particular purpose. The above referenced consortium members shall have no liability for damages of any kind including without limitation direct, special, indirect, or consequential damages that may result from the use of these materials subject to any liability which is mandatory due to applicable law. Copyright by MCN Consortium MCN. All rights reserved. / Page 15